package com.chen.syn;

// 不安全地取钱
public class UnsafeBank {

    public static void main(String[] args) {
        // 账户
        Account account = new Account(100, "结婚基金");
        Drawing you = new Drawing(account, 50, "你");
        Drawing girlFriend = new Drawing(account, 100, "女朋友");

        you.start();
        girlFriend.start();
    }

}

// 账户
class Account {
    // 余额
    int money;
    // 卡名
    String name;

    public Account(int money, String name) {
        this.money = money;
        this.name = name;
    }
}

// 模拟银行取款
class Drawing extends Thread {
    // 账户
    Account account;
    // 取了多少钱
    int drawingMoney;
    // 手里有多少钱
    int nowMoney;

    public Drawing(Account account, int drawingMoney, String name) {
        super(name);
        this.account = account;
        this.drawingMoney = drawingMoney;
    }

    @Override
    public void run() {
        synchronized (account) {
            // 判断有没有钱
            if (account.money - drawingMoney < 0) {
                System.out.println(Thread.currentThread().getName() + "钱不够， 取不了");
                return;
            }

            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            account.money = account.money - drawingMoney;
            nowMoney = nowMoney + drawingMoney;

            System.out.println(account.name + "余额为：" + account.money);
            System.out.println(this.getName() + "手里的钱：" + nowMoney);
        }
    }
}
